#16259: asprintf was unexpectedly present during build
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Reporter: ddevault | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: System/POSIX | Version: R1/beta2
Keywords: | Blocked By:
Blocking: | Platform: All
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The following program, when compiled with "cc -std=c11 -o example
example.c", produces an error: "error: static declaration of 'asprintf'
follows non-static declaration"
{{{
#define _XOPEN_SOURCE 700
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
static int
asprintf(char **strp, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int n = vsnprintf(NULL, 0, fmt, ap);
va_end(ap);
*strp = calloc(n + 1, 1);
if (!*strp) {
errno = ENOMEM;
return -1;
}
va_start(ap, fmt);
n = vsnprintf(*strp, n + 1, fmt, ap);
va_end(ap);
return n;
}
int main(void) {
return 0;
}
}}}
asprintf is not specified by POSIX and a POSIX-compatible program is
likely to implement it themselves. This should be gated behind a Haiku-
specific environment variable, similar to the GNU approach via
_DEFAULT_SOURCE or _GNU_SOURCE.
--
Ticket URL: <https://dev.haiku-os.org/ticket/16259>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.
